Sep 10 12:37:33.202 INFO checking prost-build-0.3.2 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 12:37:33.202 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 12:37:33.202 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-0/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 12:37:33.413 INFO blam! aa51f08cf6beed3cd76ad2f37591ff1ecd22ede32b7b9b924a13018b38e55d53
Sep 10 12:37:33.416 INFO running `"docker" "start" "-a" "aa51f08cf6beed3cd76ad2f37591ff1ecd22ede32b7b9b924a13018b38e55d53"`
Sep 10 12:37:34.373 INFO kablam! usermod: no changes
Sep 10 12:37:34.537 INFO kablam!    Compiling prost-build v0.3.2 (file:///source)
Sep 10 12:37:34.554 INFO kablam!     Checking multimap v0.4.0
Sep 10 12:37:34.554 INFO kablam!     Checking heck v0.3.0
Sep 10 12:37:34.554 INFO kablam!    Compiling syn v0.12.15
Sep 10 12:37:34.554 INFO kablam!     Checking prost v0.3.2
Sep 10 12:37:34.554 INFO kablam!    Compiling failure v0.1.2
Sep 10 12:37:49.260 INFO kablam!    Compiling prost-derive v0.3.2
Sep 10 12:37:54.894 INFO kablam!     Checking prost-types v0.3.2
Sep 10 12:37:59.907 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 25.51s
Sep 10 12:37:59.915 INFO kablam! su: No module specific data is present
Sep 10 12:38:00.756 INFO running `"docker" "rm" "-f" "aa51f08cf6beed3cd76ad2f37591ff1ecd22ede32b7b9b924a13018b38e55d53"`
Sep 10 12:38:00.836 INFO blam! aa51f08cf6beed3cd76ad2f37591ff1ecd22ede32b7b9b924a13018b38e55d53